20320150 has 12 divisors (see below), whose sum is σ = 37795572. Its totient is φ = 8128040.

The previous prime is 20320103. The next prime is 20320171. The reversal of 20320150 is 5102302.

It is a self number, because there is not a number n which added to its sum of digits gives 20320150.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 203152 + ... + 203251.

It is an arithmetic number, because the mean of its divisors is an integer number (3149631).

Almost surely, 2^20320150 is an apocalyptic number.

20320150 is a deficient number, since it is larger than the sum of its proper divisors (17475422).

20320150 is a wasteful number, since it uses less digits than its factorization.

20320150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406415 (or 406410 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 20320150 is about 4507.7877057377. The cubic root of 20320150 is about 272.8824694120.

Adding to 20320150 its reverse (5102302), we get a palindrome (25422452).

The spelling of 20320150 in words is "twenty million, three hundred twenty thousand, one hundred fifty".